| 自适应滤波在空间机动目标相对导航中的应用 |
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| 引用本文： | 吕纪远,周军,刘莹莹.自适应滤波在空间机动目标相对导航中的应用[J].西北工业大学学报,2011,29(4):564-568. |
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| 作者姓名： | 吕纪远 周军 刘莹莹 |
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| 作者单位： | 西北工业大学精确制导与控制研究所,陕西西安,710072 |
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| 基金项目： | 空间智能控制技术国防科技重点实验基金(SIC07020301)资助 |
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| 摘 要： | 针对空间机动目标的相对导航问题展开讨论,提出了基于UKF的空间机动目标相对导航自适应滤波方法。文章从机动目标的检测和滤波器参数的调整两方面入手,首先使用统计学方法处理机动判据归一化新息加权平方和,以避免虚警并使目标检测更为有效,然后设计一套放大状态估计协方差矩阵的滤波器参数自调整策略,实现在检测到目标机动后滤波器能够快速收敛并持续稳定跟踪。仿真验证所设计的滤波器较传统的UKF能够更好地完成机动目标的相对导航任务。
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| 关 键 词： | 相对导航 机动目标 机动检测 UKF 自适应滤波 |
Applying Auto-Adaptation Filter to Tracking of Maneuvering Target in Special Relative Navigation |
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| Lu Jiyuan,Zhou Jun,Liu Yingying.Applying Auto-Adaptation Filter to Tracking of Maneuvering Target in Special Relative Navigation[J].Journal of Northwestern Polytechnical University,2011,29(4):564-568. |
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| Authors: | Lu Jiyuan Zhou Jun Liu Yingying |
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| Affiliation: | (Institute of Precision Guidance and Control,Northwesten Polytechnical University,Xi′an 710072,China) |
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| Abstract: | Aim.The introduction of the full paper reviews a number of papers in the open literafure and then proposes the research mentioned in the title,which is explained in sections 1 and 2.Section 1 briefs the dynamic equations and measurement equations of relative motion.The core of section 2 consists of:(1) we use statistical technique to process the normalized innovation squared to avoid false alarm better;eqs.(23),(24) and(25) are worth noticing;(2) we design the covariance matrix of auto-magnified state estim... |
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| Keywords: | tracking(position) Kalman filtering navigation algorithms statistics special relative navigation maneuvering target maneuver detection unscented Kalman filter auto-adaptation filter |
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